adversary (one who opposes another in purpose or act), the name given to

the prince of evil spirits, the inveterate adversary of God and Christ

he incites apostasy from God and to sin

circumventing men by his wiles

the worshippers of idols are said to be under his control

by his demons he is able to take possession of men and inflict them with diseases

by God's assistance he is overcome

on Christ's return from heaven he will be bound with chains for a thousand years, but when the thousand years are finished he will walk the earth in yet greater power, but shortly after will be given over to eternal punishment